“…This approach has been employed in a large number of studies of protein attributes, such as identifying bacterial virulent proteins [2], predicting super-secondary structure [3], predicting protein subcellular location [4][5][6], predicting membrane protein types [7], discriminating outer membrane proteins [8], identifying antibacterial peptides [9,10], identifying allergenic proteins [11], predicting metalloproteinase family [12], predicting protein structural class [13], identifying GPCRs and their types [14], identifying protein quaternary structural attributes [15], predicting protein submitochondria locations [16], identifying risk type of human papillomaviruses [17], identifying cyclin proteins [18], predicting GABA(A) receptor proteins [19], among many others (see a long list of papers cited in the References section of [20]). Recently, the concept of PseAAC was further extended to represent the feature vectors of DNA and nucleotides [21,22], as well as other biological samples (see, for example [23][24][25]).…”